Scientists have found that two-dimensional (2D) nanostructures with asymmetric design enable a new quantum mechanism, triggering the emission of tunable light at terahertz frequencies—with unprecedented efficiency.
General Physics
Jun 18, 2014
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NASA and NOAA satellites are gathering visible, infrared, microwave and radar data on a persistent tropical low pressure area in the southwestern Bay of Campeche. System 90L now has a 50 percent chance for development, according ...
Earth Sciences
Jun 6, 2014
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(Phys.org) —Scientists have long sought to emulate the fascinatingly structured compound eyes that allow lobsters to see their way along brackish seabeds. So far, it's worked only in huge X-ray devices used for astronomy.
Optics & Photonics
Apr 25, 2014
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Sunlight is the earth's most abundant source of energy and if harvested efficiently could be a source of clean, unlimited, renewable energy. According to the United States Department of Energy, world demand for energy is ...
Energy & Green Tech
Apr 22, 2014
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Free of dyes but colorful: A team of American and Korean researchers is the first to develop non-iridescent, structural, full-spectrum pigments, whose color is independent of the viewing angle, for use in reflective displays. ...
Materials Science
Feb 20, 2014
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By inserting platinum atoms into an organic semiconductor, University of Utah physicists were able to "tune" the plastic-like polymer to emit light of different colors – a step toward more efficient, less expensive and ...
Condensed Matter
Sep 13, 2013
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Astronomers at the University of Arizona, the Arcetri Observatory near Florence, Italy and the Carnegie Observatory have developed a new type of camera that allows scientists to take sharper images of the night sky than ever ...
Astronomy
Aug 21, 2013
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(Phys.org) —The new material's artificial "atoms" are designed to work with a broad range of light frequencies. With adjustments, the researchers believe it could lead to perfect microscope lenses or invisibility cloaks.
Optics & Photonics
May 7, 2013
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(Phys.org) —A new semiconductor device capable of emitting two distinct colours has been created by a group of researchers in the US, potentially opening up the possibility of using light emitting diodes (LEDs) universally ...
Electronics & Semiconductors
May 3, 2013
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(Phys.org) —A University of Illinois research group brought together aspects of condensed matter physics, semiconductor device engineering, and photochemistry to develop a new form of high-performance solar photocatalyst ...
Materials Science
Apr 23, 2013
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